RZ Sagittae - A new SU Ursae Majoris type dwarf nova

Details RZ Sagittae - A new SU Ursae Majoris type dwarf nova RZ Sagittae - A new SU Ursae Majoris type dwarf nova

Sep 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...260l..79b&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 260, Sept. 15, 1982, p. L79-L82.

Astronomy and Astrophysics

Astrophysics

22

Dwarf Novae, Stellar Models, Stellar Spectrophotometry, Variable Stars, Light Curve, Stellar Luminosity, Ubv Spectra

Scientific paper

The dwarf nova RZ Sagittae was found to be undergoing a supermaximum in 1981 October, making it a new member of the SU Ursae Majoris class of cataclysmic variables (and only the fourth known in the Northern Hemisphere). On four consecutive nights of high-speed photometry obtained during this supermaximum, RZ Sge exhibited recurrent 0.2 mag 'superhumps' with a period that decreased from 101.3 to 100.8 minutes. The long-term behavior of RZ Sge, as recorded by amateur variable-star observers, reveals supermaxima lasting about 11 days at a mean interval of 266 days, as well as numerous normal short maxima lasting 2-3 days.

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